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Showing: 101 - 120 of 174 results
  1. What's New in CRISPR - September 2019

    Type
    Blog Post
    Published
    Sept. 10, 2019, 12:56 p.m.
    ...metastasis CRISPR screen. The Chen Mouse Tumor Suppressor Gene CRISPR Knockout Library is an AAV CRISPR knockout...blog Download the CRISPR 101 eBook Find our CRISPR 101 blog posts Read our CRISPR cheat sheet Resources...the new CRISPR plasmids available at Addgene. We will still periodically focus on specific CRISPR plasmid...CasX Drug inducible CRISPR/Cas9 activation E. coli genome-wide inhibition library CRISPR knockout libraries...Library CRISPR knockout libraries for cancer research The Sidi Chen lab recently published two CRISPR knockout...Metastasis CRISPR-Cpf1 Double Knockout Library Find the Mouse Tumor Suppressor Gene CRISPR Knockout Library...Resources on Addgene.org Read our CRISPR guide Find CRISPR plasmids by function Find recently deposited plasmids...
  2. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    Published
    Jan. 6, 2015, 5:21 p.m.
    ...11):1143-8.  A new tool for CRISPR gRNA validation Selecting a gRNA sequence that effectively targets...For more information on these new CRISPR screening tools, see our CRISPR/Cas Plasmids: Pooled Libraries ...Lentiviral CRISPR Libraries Enable Genome-Scale, Knockout Screening. Also, check out our updated CRISPR-Cas ...CRISPR-Cas resources at www.addgene.org/CRISPR/ to browse CRISPR plasmids, watch informational videos, download...for background information on CRISPR technology? See our improved CRISPR-Cas Guide. Wang et al., Science...DNA break. Next, the gRNA being tested is expressed along with Cas9. If the gRNA effectively cuts the ...Tet-inducible CRISPR activators and repressor plasmids. (Kearns et al., Development. 2014..) CRISPRs for Xenopus...
  3. Build Your CRISPR Vocabulary

    Type
    Blog Post
    Published
    July 2, 2024, 1:15 p.m.
    ...addgene.org  Addgene's CRISPR Guide Addgene's CRISPR 101 eBook  Addgene's CRISPR Cheat Sheet  Resources...DNA, and RNA used in CRISPR.   Figure 1: Overview of the parts of CRISPR. The bacterial chromosome...systems including Cas9), Cas proteins, and a CRISPR array. The CRISPR array is composed of identical repeat ...Different CRISPR systems involve different proteins, but many of them are called Cas, short for “CRISPR-associated...impetus for studying CRISPR. Spacers: Copies of foreign nucleic acid sequences in the CRISPR array that will...chopping up their own CRISPR arrays. On the other hand, viruses can evolve to evade CRISPR by mutating these... from Addgene!   RNA crRNA: “CRISPR RNAs” are transcribed from the CRISPR array and include a spacer and...
  4. Plasmids 101: Modular Cloning

    Type
    Blog Post
    Published
    March 12, 2024, 1:15 p.m.
    ...variables all at once. CRISPR CRISPR arrays and libraries depend on many gRNAs delivered with a relevant...nuclease. MoClo can be used to assemble multiplexed gRNA systems as well as additional components such as...etc. MoClo is especially useful for more complex CRISPR experiments (e.g., many guides/parts delivered)...delivered) in certain model organisms. In mammals, most CRISPR libraries are assembled and delivered virally, ...
  5. Performing In Vivo CRISPR Screens Using the FITS Approach

    Type
    Blog Post
    Published
    May 2, 2024, 1:15 p.m.
    ...FITS In vitro CRISPR screens in immune cells have identified many putative regulators of immunity. However...exists in vivo. Over the past five years, in vivo CRISPR screens have been used to interrogate T cells, ...types. A key feature of this system is a lentiviral gRNA expression vector (pRDA_526) that (1) enables efficient... Figure 1: Using FITS to perform in vivo CRISPR screens to assess T cell responses and clonal dynamics...Knockout in Immune Cells Genome-Wide Screening Using CRISPR Cancer and the Immune System: Deciphering the Relationship...
  6. Twelve Amazing Guest Blog Contributors!

    Type
    Blog Post
    Published
    Nov. 26, 2024, 2:15 p.m.
    ...about recent CRISPR deposits from Arlene Sharpe’s lab. X-Chime and Performing In Vivo CRISPR Screens Using...software that predicts efficiencies of prime editing gRNAs.   PRIDICT Harvinder Virk and Michael Biddle, ...
  7. Editor's Choice, August 2016

    Type
    Blog Post
    Published
    Sept. 2, 2016, 1:32 p.m.
    ...popular blog post on early user experiences with CRISPR alternative, NgAgo. As you might expect with any...up and running in their labs. Pooran surveyed a CRISPR google forum to get a better idea of how many people...Directed Mutagenesis by PCR & Single Base Editing with CRISPR For my editor’s choice picks this month, I’m picking...Addgene Scientist Mary Gearing and discusses a newer, CRISPR-based technique to generate C->T or G->A transitions...cells. This technique uses catalytically inactive CRISPR endonuclease (dCas9) fused to a deaminase to make...the transitions at target sequences specified by gRNAs. Caveats, potential specificity issues, and other...Google Forums Round Up: First Impressions of NgAgo CRISPR Between the Genes: How to Experiment with Enhancers...
  8. Celebrating Outstanding CRISPR/Cas9 Achievements at the Dr. Paul Janssen Award Dinner

    Type
    Blog Post
    Published
    Sept. 15, 2014, 6:05 p.m.
    ...  New to CRISPR/Cas9 Technology? Learn More: Addgene's CRISPR/Cas9 Guide History of CRISPR Cas - A tale... awards that will be bestowed upon discovers of CRISPR/Cas9 genome engineering, Dr. Jennifer Doudna and...Addgene Scientist Matt Ferenc (one of our resident CRISPR experts) at the 2014 Johnson & Johnson’s Dr. Paul..., programmable DNA cutting enzyme. Second, since gRNA and crRNA could be combined into one RNA to direct...disease. They are finding they have been able to use CRISPR/Cas9 to generate mice with genes knocked out in...technologies. Addgene is proud to be helping get CRISPR reagents out to academic labs. It is our hope that.... He offered the great analogy of comparing the CRISPR/Cas9 system to Norton Antivirus. Antivirus programs...
  9. Design Tips for Prime Editing

    Type
    Blog Post
    Published
    Jan. 23, 2025, 2:15 p.m.
    ...Download the CRISPR 101 eBook Resources on Addgene.org Read the CRISPR guide Find CRISPR plasmids by ... a prime editing guide RNA (pegRNA). The pegRNA consists of a CRISPR gRNA extended to include a primer...extension of the pegRNA should not be C. A C base is speculated to base pair with G81 of the gRNA (Anzalone ...Prime Editing: Adding Precision and Flexibility to CRISPR Editing PRIDICT: Predicting Efficiencies of Prime... the end of the pegRNA. Adding 3′ polyU tracts to the end of pegRNAs (but not epegRNAs) can improve either...left), while pegRNAs that use other bases in this location bind to Cas9 with canonical sgRNA structure (...your tool of choice. Nicking sgRNAs PE3 and PE5: These tools use an sgRNA to guide nicking of the unedited...
  10. A New Generation of Adenine Base Editors Improves Editing in Primary Human Cells

    Type
    Blog Post
    Published
    May 7, 2020, 1:15 p.m.
    ...xCas9, a CRISPR variant with PAM flexibility Resources on Addgene.org Get the basics of CRISPR in our ...our CRISPR guide Find all plasmids for base editing in our collection Sign up to get our free CRISPR eBook...cellular DNA and RNA dependent or independent of the gRNA used (Gaudelli et al., 2017). The authors tested...al., 2020) was able to reduce off-target RNA and gRNA-dependent DNA editing while maintaining on-target...
  11. The CRISPR Software Matchmaker: A New Tool for Choosing the Best CRISPR Software for Your Needs

    Type
    Blog Post
    Published
    Nov. 3, 2015, 3:30 p.m.
    ...Tips on How to Design a gRNA Read Our CRISPR Guide to Catch up on All the CRISPR Basics Read Other Blog...in the first place? How CRISPR innovation affected software development CRISPR, like the miRNA bubble ... think we are currently at in the CRISPR software space. The CRISPR research community hasn't had a chance...consensus on the best CRISPR software tools yet. As a genome editing tool, the CRISPR/Cas9 technology has...pool of CRISPR software embodies solutions that facilitate most experimental applications in CRISPR engineering...type of CRISPR experiment being pursued. You should also look at the glossary section of the CRISPR Software...Blog Posts about CRISPR Find validated gRNAs ...
  12. Plasmids 101: NGS Quality Control for Pooled Libraries

    Type
    Blog Post
    Published
    Oct. 26, 2017, 1:59 p.m.
    ...re-amplified our distribution stock of the Brunello Human gRNA library, and we thought it would be a good time ... the plasmids are all very similar sizes, like a gRNA library, this is less of a concern, but Addgene ...confirmed using next-generation sequencing (NGS). For gRNA libraries, you’ll design primers to create 200-300...Sequencing to Validate AAV Preps Learn More about Pooled CRISPR Libraries Resources on Addgene.org Browse Pooled...
  13. CRISPR Antimicrobials

    Type
    Blog Post
    Published
    May 3, 2016, 2:30 p.m.
    ...Plasmids for Your Research Read Our CRISPR Guide Pages Find CRISPR gRNA Design Tools .... Advantages of CRISPR over traditional antibiotics The potential advantages of CRISPR over traditional...plasmid-based, CRISPR systems (Find the Citorik Plasmids here). In both cases, they used 1-2 CRISPR crRNAs targeting...strategies for bacterial CRISPR targeting. Phage-derived vectors carry CRISPR RNAs (crRNAs) targeting ... Blog CRISPR Methods for Bacterial Genome Engineering Treating Muscular Dystrophy with CRISPR Gene Editing...Using CRISPR to Edit Disease out of the Genome  Additional Resources on Addgene.org Find CRISPR Plasmids...’ll have less potential to become resistant to? CRISPR may provide a method for doing just that. While...
  14. Plasmids 101: Screens vs. Selections

    Type
    Blog Post
    Published
    Nov. 10, 2022, 2:15 p.m.
    ... Addgene Blog CRISPR libraries Genome-wide screens with CRISPR Lentiviral CRISPR libraries ... With the advent of CRISPR, genome-wide knockout screens are possible with gRNA libraries targeting all...While the entire genome can be knocked out with CRISPR, the entirety of the small molecule realm is typically...downstream manipulations as a forward or reverse screen (CRISPR, drug, etc.), just with an added baseline component...component. Alternative screening techniques While CRISPR and drugs dominate the screening scene, there are... worth considering. RNAi screens are similar to CRISPR, but instead of knocking out the genes of interest... be lethal to cells and thus not assayable with CRISPR. Another method, popularized in yeast, are temperature...
  15. Cas13d: Small RNA-targeting CRISPR enzymes for transcriptome engineering

    Type
    Blog Post
    Published
    May 3, 2018, 1:48 p.m.
    ...Microbial CRISPR diversity is impressive, and researchers are just beginning to tap the wealth of CRISPR possibilities...Cas13d CRISPR array processing is robust, with CasRx and either an unprocessed or processed gRNA array ...RNA Knockdown Plasmids Check out our CRISPR Guide Read our CRISPR History  ...RNA-editing Cas13 enzymes have taken the CRISPR world by storm. Like RNA interference, these enzymes ...general bioinformatic screens that looked for a CRISPR repeat array near a putative effector nuclease....these papers can independently process their own CRISPR arrays into guide RNAs. crRNA cleavage is retained... WYL proteins an intriguing counterpart to anti-CRISPR proteins that negatively modulate the activity ...
  16. Plasmids 101: Screening Strategies Used in Plasmid Cloning

    Type
    Blog Post
    Published
    Sept. 15, 2020, 1:15 p.m.
    ...comes in. Let’s take a look at All_in_one_CRISPR/Cas9_LacZ, a CRISPR gRNA plasmid from Lynne Postovit’s...it won’t tell you whether the vector contains the gRNA insert or not. A blue-white screen, however, can...and distinguish between plasmids that contain the gRNA (white) from those that do not (blue). Let’s take...
  17. Using Addgene's New Viral Service for Your Research

    Type
    Blog Post
    Published
    Nov. 17, 2016, 3:30 p.m.
    ... Cas9 activators, Cas9 repressors, select gRNAs, and CRISPR pooled libraries. Whether you’d like to knockout...Service, we’re distributing lentivirus (with many CRISPR tools included among the preps that are currently...lentiviral vectors in the repository are used to produce CRISPR tools, we’re starting the Viral Service with lentiviral... in experiments other than just those involving CRISPR and so we also have lentivirus for delivering control...
  18. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    Published
    March 8, 2017, 3:15 p.m.
    ...Addgene Plasmids Searchable and Sortable gRNAs for Your Next CRISPR Experiment Suggest A Plasmid You'd Like... Type Choose from: Encodes one insert, encodes gRNA/shRNA, or empty backbone. Purpose Answer “... expression, plant expression, mouse targeting, CRISPR, TALEN, synthetic biology, affinity reagent/antibody...
  19. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ... which. Acronym Full name Notes CRISPR terms gRNA/sgRNA Guide RNA RNA used by Cas9 to locate a...tip! In CRISPR, the non-target strand is the DNA strand that does not base pair with the gRNA. Base editors...blog CRISPR 101: Cytosine and Adenine Base Editors Read about four base editor reporters CRISPR 101: ...Editing CRISPR 101: Cas9 Structural Biology Additional resources on Addgene.org Browse CRISPR plasmids...editing Get a broad overview with our CRISPR Guide Check out our CRISPR 101 ebook ...The first base editors revolutionized CRISPR gene editing. Cytosine base editors (CBEs) and adenine base...base editing tools First, let’s briefly review how CRISPR-derived base editing works in general. Base editors...
  20. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    ...very fast CRISPR, is a light-inducible CRISPR system developed by Taekjip Ha’s lab where Cas9-gRNA complex...       The CRISPR corner By Jennifer Tsang Here are a few highlights from recent CRISPR plasmids. To...To find all of the CRISPR plasmids available from Addgene, head over to our CRISPR Plasmids and Resources...auxin inducible degron system for C. elegans New CRISPR plasmids New items from the viral service Epigenetic...Saptrap cloning systems to generate AID* tagged CRISPR knock-in repair constructs. These repair constructs...tagged AID* into genomic sites of interests via CRISPR techniques. This tool-kit includes an array of ...Cas9 cleavage can induce DSBs within minutes. New CRISPR plasmids for Borrelia burgdorferi from Christine...
Showing: 101 - 120 of 174 results